Shredder



FIG. 1 is a perspective view of a shredder showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan thereof;

FIG. 4 is a front elevation thereof;

FIG. 5 is a right side elevation thereof;

FIG. 6 is a rear elevation thereof; and,

FIG. 7 is a left side elevation thereof.

The broken lines in FIGS. 3 through 7 are included for the purpose of illustrating environment and form no part of the claimed design. 

The ornamental design for a shredder, as shown and described. 